Four out of five dentists recommend the ADA for their peers who join organizations. The American Dental Association is the oldest and largest dental association in the world representing more than 155,000 dentists or seven out of 10 (nearly four out of five).

September 15, 2005Â Henry Kornhauser, an adman for 50 years and originator of the claim "Four out of five dentists recommend Trident," died yesterday after a 10-month struggle with the progressive neurological disease myasthenia gravis. He was 73.

Four out of five dentists do not have sufficient savings and investments to "retire comfortably." One in three dentists will fail to sell one of their most valuable assets - their practice.